Ion-chromatographic measurements of ammonium, fluoride, acetate, formate and methanesulphonate ions at very low levels in antarctic ice
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Alpine snowpit profiles of polar organic compounds from Mt. Tateyama central Japan: Atmospheric transport of organic pollutants with Asian dust
2021, Atmospheric EnvironmentCitation Excerpt :However, the studies on organic compounds in snow/ice archives suggested that organic compounds in snow/ice/glaciers are of biological origin (Domine et al., 2011; McNeill et al., 2012; Jacobi et al., 2012; Pokhrel, 2015; Feng et al., 2018). For example, formate and acetate using the ice sheet in Dome C from Antarctica have been reported (Saigne et al., 1987). Similarly, Kawamura et al. (1996a, 2001a,b) reported mono- and/or di-carboxylic acids in rain and snow samples from Los Angeles and Greenland ice core.
An improved ion chromatography system coupled with a melter for high-resolution ionic species reconstruction in Antarctic firn cores
2020, Microchemical JournalCitation Excerpt :When these ratios were considered, sea spray and terrestrial particles contributed only 2.3 ± 2.4% (sd) and 33.2 ± 25.7% of F−, respectively. The F− concentration (0.83 ± 1.21 µg L−1) was several fold higher than the Antarctic background level (0.19 µg L−1) [35]. Therefore, emission sources other than sea spray and the crust were presumed to elevate F− concentrations in Styx Glacier.
Colorimetric determination of F<sup>-</sup>, Br<sup>-</sup> and I<sup>-</sup> ions by Ehrlich's bio-reagent oxidation over enzyme mimic like gold nanoparticles: Peroxidase-like activity and multivariate optimization
2020, Spectrochimica Acta - Part A: Molecular and Biomolecular SpectroscopyCitation Excerpt :In this manner, reliable detection of these anions level in these sources is essential for enhancing the general wellbeing and controlling the natural contamination. Regular techniques for detection of halide ions such as capillary electrophoresis, atomic absorption, inductively coupled plasma mass spectroscopies, inductively coupled plasma emission, ion chromatography [12], electrochemistry, fluorescent [8] and phosphorescent [13,14]. These strategies require exceptionally specialized preparing in view of their confounded methodology and also they are costly and tedious.
Methanol and ethanol concentrations in a Greenland ice core
2019, Atmospheric EnvironmentSub-1 mL sample requirement for simultaneous determination of 17 organic and inorganic anions and cations in Antarctic ice core samples by dual capillary ion chromatography
2019, Analytica Chimica ActaCitation Excerpt :Additionally, measurements of fluoride from ice cores have been used to identify certain volcanic eruptions rich in hydrofluoric acid (HF) emissions [39,41,42]. The first measurements of fluoride at low levels in Antarctic snow and ice were carried out by Saigne et al. [43] using IC, and later by other groups within different ice core projects [8,28]. The fluoride value obtained in the current study, calculated as an average, was 0.012 μEq L−1 which is consistent with the fluoride average background levels of 0.012 μEq L−1 and 0.006 μEq L−1 provided by Severi [28] and Saigne [43] in their respective studies.
Spatial and temporal variability of snow chemical composition and accumulation rate at Talos Dome site (East Antarctica)
2016, Science of the Total Environment